Stapling-machine



C, A. BORBA. smuwe MACHINE.

APPLICATION FILED NOV-13, 1918.

' 1,369,726. Patented Feb. 22,1921.

5 SHEETSSHEET Ir 11" N C. A. BURBA.

STAPLING MACHINE- APPLICATION mwmuv. ls. lfilfi.

5 SHEETS-SHEET 2- Patented Feb. 22, 1921..

C. A. BORBAQ STVA'PLING MACHINE.

APPLICATION FILED Nov. 13, {91s.

Patented Feb. 22, 1921.

5 SHEETS-SHEET 3.

c. A. BORBA.

suPLme meme;

APPLICATION FILED NOV-13, l9.l-8-

Patented Feb. 22, 1921..

5 SHEETS-SHEET 5-- llllhlllllllllllllllllIIHMQ I I p UNITED str es TNT 055mg cnAsAn A. BORBA, or SAN rnancrsco, "oAnIroRivIAi I swarms-MACHINE To allwhore"itmay concernLv I 1 Be knownthat I, CEAsAR. A. BonnA a citizen oftheQRepublic of Portugal, res ding in the city and: county of San F rancisco i State of'California, have nvented acertam new and useful Improvement 111 stapling-v Machines of which the following is a specification.

. provide an improved means whereby the- I My invention relates to improvements in a stapling machine for stapling fabric such as flags and the like, v onto wooden staffs wherein a staple forming means operates in eonjunction with a presser foot to press the staple through the fabric and" nto the staff. 1 M v The primary'object of my invention is a to provide an, improved-machine adapted to cut and form staples from a continuous wire and press the formed staple through a flag or thelike and into a staff.

It is a further object of the 1nvent1on to upper surfaces of staffsofdiiferent diameters may be held within the same plane so that flags and the like ofdifferent sizes may be stapled to staffs of suitable diameter wlthoutaltering, the throw of the mechanism. v

It is also an object of the present invention to provide an improved machine of the character described having few and simple parts whereby .an eflicientmachine maybe cheaplyproduced having a maximum. ef-:

ficiency. V r laccomplish these and other 'ob ectssby means of the device disclosed in the .dra wings forming a part of the present spec fication wherein. like characters of reference are used-to. designate s milar parts throughout the said specification and'draw-f ings,-'and in .which- Figure 1 is a the machine Fig.2"is airearelevation; l e Fig. 8 is an enlarged detailed view of the wirefeeding, cutting and the lower portion of the staple forming 'means, disclosing the a feeding means in operation;

Fig. v4 is a similar viewdisclosing the cutting means in operation after the freeend of the wire has been secured by forming means;

v Specification vof Letters Patent.

broken front elevation of 7 and 8 aredetailed .views dis clos ng n] 7 Patented Feb. ,22, 1921., appl ieatign med i e e 1. 1 a1,. -'2 2, .7

successive stages of theistaple closing the manner in which-a severed staple length ofiw re 1s engaged bythe forming.

means; Fig. 1 0 is manner of forming. the staple; and

Fig. 11 is a cutting mechanism. a V 1. Referring to the drawings the numeral :1

is :used to designate a suitableframeghaving a central web 2 therein and ,a standard 3 at one end of said frame 1 to support. a; suitable reel 4: containing continuous wire .6. Q i

' The wire 6' ispassedfthrough .70

mounted plate 7 having anaperture 8 therea similar view disclosing the detailed planview of .the.

a a s st t ally in intercepted by a longitudinal passage 9,

through'which passes the wire-6.

v A latch 11 is pivotally ;mountedupon the 1 plate 7 and has an offset'foot 12 on the,

'bottom -thereof which extends inside of the a lever'16 pivotally mounted upon-the frame 1 asat 17 and provided! at itsupperend Y with an adjustable roller'18 '-whicl1--is en gagedin a greater 'orlesser degree, according to the position of the said roller-'18, byf

shaft 21.

As the shaft 21-is. rotated by .means of a gear 22 meshing with a pinion 23 on a driving'shaft 24,-the cam 19 operates to engage therollerf18 on the lever 16 and move the means of a suitable cam 19 on a power upper end of the latch 11- in-- the direction indicated by the arrow. in Fig. 3 of the drawings, which -movement will move the. f foot 12 to engage the wire 6 and bind the.

same between the lower end of said foot and the bottom surface of-thej aperture Sand cause the plate 7 to move forward againstthetension of aspring 26 fand'feeda prethrough an aperture orbore 27 adjacent a "cutter 28 arranged at an angle to said bore 27. The cutter 28 is pivotally mounted as j at 29 and is' provided with a slot 31 within i which rests an operating arm. 82- for the cutter 28, said arm being mounted upon a shaft 33 connected at the rear of the frame 1 by means. of a connecting rod 34 to a lever 36 in turn operated by a cam 37.

A plunger 39 is slidably mounted within the central web 2 and at right angles and 7 adjacent to the cutter 28 and is provided with an enlarged portion 41. A spring 42 is interposed between the enlarged portion 41 and the back of a bracket 43 supporting. a staff holder 44 having a series of arcuate seats146 of different depths whereby staffs 47of different diameters may be held with their upp'er surfaces within the same plane and always at the same distance below the bottom of the staple forming mechanism hereinafter more fully set' forth.

The plunger 39 is normally projected into an operative position as indicated in Figs. 5' and 6 of the drawings, by means of a lever 51 fulcrumed as at 52' to a bracket 53'mounte'd upon the-back of the central Web 2. The upper end of the lever 51 is operated by means of a suitable cam 54 to releasethe plunger 39 and thereby permit the tension of the spring 42 to remove said able cam- 68, mounted upon the power shaft plunger 39 from the path of the staple forming mechanism.

The staple forming'mechanism consists of a bar 61 vertically andslidably held by a late 62 on the central web 2. The bar 61 is provided withaa slot 63 in the lower end thereof said slot 63 being in turn provided with grooves 64 anda slightly groovedbottom 66. Y A The upper end of the bar" 61 is provided with rollers 67 which are engaged by a suit- 21, to operate the bar 61 in amanner here'- inafter more fully set forth.

A second-bar 69 is slidably' mounted'back of the plate 62 and is provided with a driver 71 on the'lower end thereofwh-i oh projects into the slot 63 in thebottom' of the" bar 61, said driver being-also provided with a groove 72 to assist in holding a formed sta 1e. 7 V v lever 73 is pivotally'mountedupon the central web 2 and engages a pin 74 on the bar 69 "which .7 4 extends through a slot;

76 in the plate 62. A spring 77 normally raises the lever 7 3 which in turn raises the; bar 69 and driver 71 againstthe upper end" o fithe slot 63in the bottom of the bar 61 which upward pressure normally retains the rollers 67 in engagement with the cams 68.

The-holder 44 is arranged directly below the bars 61 and 69 to hold the upper sur faces of staffs; 47 of variousdiameters the. the bar same distances below the bottom of 61 and driver 71 of the bar. 69.

The cutter-28 is slidably mounted toregulate thelengt'h of staple to be cut from the wire 6 and is'adjust'ably held in" position by means of a suitable: set screw 81'.

-per1od of engagement The length of wire to be fed by meansof which the length or size of the staple is to be regulated may be adjusted by moving the roller 18 in the lever 16 to regulate. the with its respective mm 19. V 1 1 In operation the cam 19 first operates the lever 16 to actuate the latch 11and thereby engage and move the wire 6 and slide 7 toward the: cutter 28. lVhen the cam 19 releases the roller 18 the spring 26 returns the slide 7 to normal position, the foot 12 of the I latch being arranged to release the wire 6 on its return movementpf is I V The cam 37 then operates; through the medium of the lever 36, connecting rod 34 and shaft 33' to operate the arm- 32" and the cutter 28 which cuts or severs the free end of the-wire6 at an anglethereto to provide a sharpened end for the staplelegs Simultaneously withthe operation of the cam 37 the cam 68 engages the rollers 67 on the top' of the bar 61 and moves said bar a slight distance downward until the groove 66- in the bottom thereof engages and im one of the arcuate seats 46 of the staff holder 44. The groove 66in thebottom ofthe bar 61 tends t9 center'thesta-ff 67 with the staple held within theis'lot" 63 "of the bar 61. A further rotation of the cam 68 carries a bar 88 against a roller 89 in the top of thebar 69 and" moves said bar 69fland driver 71 thereon to drive the staple through thefaby ric and into the staff 47. j

Having'thus described invention, what I claim as new and desire to secure byLet' ters Patent is- A stapling machine'- for stapling fabric" and the likeonto wooden staffs; comprising a staff holder having arcuate seats therein of different depths whereby staffsof difiere" ent diameters may be held with theiru pper surfaces in the same plane; a staple forming mechanism arranged above the staff holder;

means for feeding wire" to'the staple form-- in'g means and means sl-idabl y mounted within the staple forming means for driving a formed staple into thestaff.

2. A stapling machine 4 comprising a staff holder having arcua-te seats thereon ofdifferen't depths whereby staffs of different diameters may be held with their a parent faces within the same plane; a staple forming means arranged above the stafi; means for operating the staple forming means to for feedinga continuous wire into the staple carry the staple adjacent the staff and for forming means; means for cutting a staple operating the driver to drive the staple into 10 length of wire from the continuous wire; the staff. 5 means for operating the wire forming means In witness whereof, I hereunto set my sigto form a staple; a driver slidably mounted nature.

within the staple forming means; and means v CEASAR A. BORBA. 

